author | wenzelm |
Sat, 25 May 2013 17:40:44 +0200 | |
changeset 52147 | 9943f8067f11 |
parent 48985 | 5386df44a037 |
permissions | -rw-r--r-- |
theory MyList imports Main begin datatype 'a list = Nil | Cons 'a "'a list" fun app :: "'a list => 'a list => 'a list" where "app Nil ys = ys" | "app (Cons x xs) ys = Cons x (app xs ys)" fun rev :: "'a list => 'a list" where "rev Nil = Nil" | "rev (Cons x xs) = app (rev xs) (Cons x Nil)" value "rev(Cons True (Cons False Nil))" end